| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * RZ/G3S CPG driver |
| * |
| * Copyright (C) 2023 Renesas Electronics Corp. |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/device.h> |
| #include <linux/init.h> |
| #include <linux/kernel.h> |
| |
| #include <dt-bindings/clock/r9a08g045-cpg.h> |
| |
| #include "rzg2l-cpg.h" |
| |
| /* RZ/G3S Specific registers. */ |
| #define G3S_CPG_PL2_DDIV (0x204) |
| #define G3S_CPG_SDHI_DDIV (0x218) |
| #define G3S_CPG_PLL_DSEL (0x240) |
| #define G3S_CPG_SDHI_DSEL (0x244) |
| #define G3S_CLKDIVSTATUS (0x280) |
| #define G3S_CLKSELSTATUS (0x284) |
| |
| /* RZ/G3S Specific division configuration. */ |
| #define G3S_DIVPL2B DDIV_PACK(G3S_CPG_PL2_DDIV, 4, 3) |
| #define G3S_DIV_SDHI0 DDIV_PACK(G3S_CPG_SDHI_DDIV, 0, 1) |
| #define G3S_DIV_SDHI1 DDIV_PACK(G3S_CPG_SDHI_DDIV, 4, 1) |
| #define G3S_DIV_SDHI2 DDIV_PACK(G3S_CPG_SDHI_DDIV, 8, 1) |
| |
| /* RZ/G3S Clock status configuration. */ |
| #define G3S_DIVPL1A_STS DDIV_PACK(G3S_CLKDIVSTATUS, 0, 1) |
| #define G3S_DIVPL2B_STS DDIV_PACK(G3S_CLKDIVSTATUS, 5, 1) |
| #define G3S_DIVPL3A_STS DDIV_PACK(G3S_CLKDIVSTATUS, 8, 1) |
| #define G3S_DIVPL3B_STS DDIV_PACK(G3S_CLKDIVSTATUS, 9, 1) |
| #define G3S_DIVPL3C_STS DDIV_PACK(G3S_CLKDIVSTATUS, 10, 1) |
| #define G3S_DIV_SDHI0_STS DDIV_PACK(G3S_CLKDIVSTATUS, 24, 1) |
| #define G3S_DIV_SDHI1_STS DDIV_PACK(G3S_CLKDIVSTATUS, 25, 1) |
| #define G3S_DIV_SDHI2_STS DDIV_PACK(G3S_CLKDIVSTATUS, 26, 1) |
| |
| #define G3S_SEL_PLL4_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 6, 1) |
| #define G3S_SEL_SDHI0_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 16, 1) |
| #define G3S_SEL_SDHI1_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 17, 1) |
| #define G3S_SEL_SDHI2_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 18, 1) |
| |
| /* RZ/G3S Specific clocks select. */ |
| #define G3S_SEL_PLL4 SEL_PLL_PACK(G3S_CPG_PLL_DSEL, 6, 1) |
| #define G3S_SEL_SDHI0 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 0, 2) |
| #define G3S_SEL_SDHI1 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 4, 2) |
| #define G3S_SEL_SDHI2 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 8, 2) |
| |
| /* PLL 1/4/6 configuration registers macro. */ |
| #define G3S_PLL146_CONF(clk1, clk2) ((clk1) << 22 | (clk2) << 12) |
| |
| #define DEF_G3S_MUX(_name, _id, _conf, _parent_names, _mux_flags, _clk_flags) \ |
| DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = (_conf), \ |
| .parent_names = (_parent_names), \ |
| .num_parents = ARRAY_SIZE((_parent_names)), \ |
| .mux_flags = CLK_MUX_HIWORD_MASK | (_mux_flags), \ |
| .flag = (_clk_flags)) |
| |
| enum clk_ids { |
| /* Core Clock Outputs exported to DT */ |
| LAST_DT_CORE_CLK = R9A08G045_SWD, |
| |
| /* External Input Clocks */ |
| CLK_EXTAL, |
| |
| /* Internal Core Clocks */ |
| CLK_OSC_DIV1000, |
| CLK_PLL1, |
| CLK_PLL2, |
| CLK_PLL2_DIV2, |
| CLK_PLL2_DIV2_8, |
| CLK_PLL2_DIV6, |
| CLK_PLL3, |
| CLK_PLL3_DIV2, |
| CLK_PLL3_DIV2_4, |
| CLK_PLL3_DIV2_8, |
| CLK_PLL3_DIV6, |
| CLK_PLL4, |
| CLK_PLL6, |
| CLK_PLL6_DIV2, |
| CLK_SEL_SDHI0, |
| CLK_SEL_SDHI1, |
| CLK_SEL_SDHI2, |
| CLK_SEL_PLL4, |
| CLK_P1_DIV2, |
| CLK_P3_DIV2, |
| CLK_SD0_DIV4, |
| CLK_SD1_DIV4, |
| CLK_SD2_DIV4, |
| |
| /* Module Clocks */ |
| MOD_CLK_BASE, |
| }; |
| |
| /* Divider tables */ |
| static const struct clk_div_table dtable_1_2[] = { |
| { 0, 1 }, |
| { 1, 2 }, |
| { 0, 0 }, |
| }; |
| |
| static const struct clk_div_table dtable_1_8[] = { |
| { 0, 1 }, |
| { 1, 2 }, |
| { 2, 4 }, |
| { 3, 8 }, |
| { 0, 0 }, |
| }; |
| |
| static const struct clk_div_table dtable_1_32[] = { |
| { 0, 1 }, |
| { 1, 2 }, |
| { 2, 4 }, |
| { 3, 8 }, |
| { 4, 32 }, |
| { 0, 0 }, |
| }; |
| |
| /* Mux clock names tables. */ |
| static const char * const sel_sdhi[] = { ".pll2_div2", ".pll6", ".pll2_div6" }; |
| static const char * const sel_pll4[] = { ".osc_div1000", ".pll4" }; |
| |
| /* Mux clock indices tables. */ |
| static const u32 mtable_sd[] = { 0, 2, 3 }; |
| static const u32 mtable_pll4[] = { 0, 1 }; |
| |
| static const struct cpg_core_clk r9a08g045_core_clks[] __initconst = { |
| /* External Clock Inputs */ |
| DEF_INPUT("extal", CLK_EXTAL), |
| |
| /* Internal Core Clocks */ |
| DEF_FIXED(".osc_div1000", CLK_OSC_DIV1000, CLK_EXTAL, 1, 1000), |
| DEF_G3S_PLL(".pll1", CLK_PLL1, CLK_EXTAL, G3S_PLL146_CONF(0x4, 0x8)), |
| DEF_FIXED(".pll2", CLK_PLL2, CLK_EXTAL, 200, 3), |
| DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 200, 3), |
| DEF_FIXED(".pll4", CLK_PLL4, CLK_EXTAL, 100, 3), |
| DEF_FIXED(".pll6", CLK_PLL6, CLK_EXTAL, 125, 6), |
| DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2), |
| DEF_FIXED(".pll2_div2_8", CLK_PLL2_DIV2_8, CLK_PLL2_DIV2, 1, 8), |
| DEF_FIXED(".pll2_div6", CLK_PLL2_DIV6, CLK_PLL2, 1, 6), |
| DEF_FIXED(".pll3_div2", CLK_PLL3_DIV2, CLK_PLL3, 1, 2), |
| DEF_FIXED(".pll3_div2_4", CLK_PLL3_DIV2_4, CLK_PLL3_DIV2, 1, 4), |
| DEF_FIXED(".pll3_div2_8", CLK_PLL3_DIV2_8, CLK_PLL3_DIV2, 1, 8), |
| DEF_FIXED(".pll3_div6", CLK_PLL3_DIV6, CLK_PLL3, 1, 6), |
| DEF_FIXED(".pll6_div2", CLK_PLL6_DIV2, CLK_PLL6, 1, 2), |
| DEF_SD_MUX(".sel_sd0", CLK_SEL_SDHI0, G3S_SEL_SDHI0, G3S_SEL_SDHI0_STS, sel_sdhi, |
| mtable_sd, 0, NULL), |
| DEF_SD_MUX(".sel_sd1", CLK_SEL_SDHI1, G3S_SEL_SDHI1, G3S_SEL_SDHI1_STS, sel_sdhi, |
| mtable_sd, 0, NULL), |
| DEF_SD_MUX(".sel_sd2", CLK_SEL_SDHI2, G3S_SEL_SDHI2, G3S_SEL_SDHI2_STS, sel_sdhi, |
| mtable_sd, 0, NULL), |
| DEF_SD_MUX(".sel_pll4", CLK_SEL_PLL4, G3S_SEL_PLL4, G3S_SEL_PLL4_STS, sel_pll4, |
| mtable_pll4, CLK_SET_PARENT_GATE, NULL), |
| |
| /* Core output clk */ |
| DEF_G3S_DIV("I", R9A08G045_CLK_I, CLK_PLL1, DIVPL1A, G3S_DIVPL1A_STS, dtable_1_8, |
| 0, 0, 0, NULL), |
| DEF_G3S_DIV("P0", R9A08G045_CLK_P0, CLK_PLL2_DIV2_8, G3S_DIVPL2B, G3S_DIVPL2B_STS, |
| dtable_1_32, 0, 0, 0, NULL), |
| DEF_G3S_DIV("SD0", R9A08G045_CLK_SD0, CLK_SEL_SDHI0, G3S_DIV_SDHI0, G3S_DIV_SDHI0_STS, |
| dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT, |
| rzg3s_cpg_div_clk_notifier), |
| DEF_G3S_DIV("SD1", R9A08G045_CLK_SD1, CLK_SEL_SDHI1, G3S_DIV_SDHI1, G3S_DIV_SDHI1_STS, |
| dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT, |
| rzg3s_cpg_div_clk_notifier), |
| DEF_G3S_DIV("SD2", R9A08G045_CLK_SD2, CLK_SEL_SDHI2, G3S_DIV_SDHI2, G3S_DIV_SDHI2_STS, |
| dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT, |
| rzg3s_cpg_div_clk_notifier), |
| DEF_FIXED(".sd0_div4", CLK_SD0_DIV4, R9A08G045_CLK_SD0, 1, 4), |
| DEF_FIXED(".sd1_div4", CLK_SD1_DIV4, R9A08G045_CLK_SD1, 1, 4), |
| DEF_FIXED(".sd2_div4", CLK_SD2_DIV4, R9A08G045_CLK_SD2, 1, 4), |
| DEF_FIXED("M0", R9A08G045_CLK_M0, CLK_PLL3_DIV2_4, 1, 1), |
| DEF_G3S_DIV("P1", R9A08G045_CLK_P1, CLK_PLL3_DIV2_4, DIVPL3A, G3S_DIVPL3A_STS, |
| dtable_1_32, 0, 0, 0, NULL), |
| DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A08G045_CLK_P1, 1, 2), |
| DEF_G3S_DIV("P2", R9A08G045_CLK_P2, CLK_PLL3_DIV2_8, DIVPL3B, G3S_DIVPL3B_STS, |
| dtable_1_32, 0, 0, 0, NULL), |
| DEF_G3S_DIV("P3", R9A08G045_CLK_P3, CLK_PLL3_DIV2_4, DIVPL3C, G3S_DIVPL3C_STS, |
| dtable_1_32, 0, 0, 0, NULL), |
| DEF_FIXED("P3_DIV2", CLK_P3_DIV2, R9A08G045_CLK_P3, 1, 2), |
| DEF_FIXED("ZT", R9A08G045_CLK_ZT, CLK_PLL3_DIV2_8, 1, 1), |
| DEF_FIXED("S0", R9A08G045_CLK_S0, CLK_SEL_PLL4, 1, 2), |
| DEF_FIXED("OSC", R9A08G045_OSCCLK, CLK_EXTAL, 1, 1), |
| DEF_FIXED("OSC2", R9A08G045_OSCCLK2, CLK_EXTAL, 1, 3), |
| DEF_FIXED("HP", R9A08G045_CLK_HP, CLK_PLL6, 1, 2), |
| }; |
| |
| static const struct rzg2l_mod_clk r9a08g045_mod_clks[] = { |
| DEF_MOD("gic_gicclk", R9A08G045_GIC600_GICCLK, R9A08G045_CLK_P1, 0x514, 0), |
| DEF_MOD("ia55_pclk", R9A08G045_IA55_PCLK, R9A08G045_CLK_P2, 0x518, 0), |
| DEF_MOD("ia55_clk", R9A08G045_IA55_CLK, R9A08G045_CLK_P1, 0x518, 1), |
| DEF_MOD("dmac_aclk", R9A08G045_DMAC_ACLK, R9A08G045_CLK_P3, 0x52c, 0), |
| DEF_MOD("wdt0_pclk", R9A08G045_WDT0_PCLK, R9A08G045_CLK_P0, 0x548, 0), |
| DEF_MOD("wdt0_clk", R9A08G045_WDT0_CLK, R9A08G045_OSCCLK, 0x548, 1), |
| DEF_MOD("sdhi0_imclk", R9A08G045_SDHI0_IMCLK, CLK_SD0_DIV4, 0x554, 0), |
| DEF_MOD("sdhi0_imclk2", R9A08G045_SDHI0_IMCLK2, CLK_SD0_DIV4, 0x554, 1), |
| DEF_MOD("sdhi0_clk_hs", R9A08G045_SDHI0_CLK_HS, R9A08G045_CLK_SD0, 0x554, 2), |
| DEF_MOD("sdhi0_aclk", R9A08G045_SDHI0_ACLK, R9A08G045_CLK_P1, 0x554, 3), |
| DEF_MOD("sdhi1_imclk", R9A08G045_SDHI1_IMCLK, CLK_SD1_DIV4, 0x554, 4), |
| DEF_MOD("sdhi1_imclk2", R9A08G045_SDHI1_IMCLK2, CLK_SD1_DIV4, 0x554, 5), |
| DEF_MOD("sdhi1_clk_hs", R9A08G045_SDHI1_CLK_HS, R9A08G045_CLK_SD1, 0x554, 6), |
| DEF_MOD("sdhi1_aclk", R9A08G045_SDHI1_ACLK, R9A08G045_CLK_P1, 0x554, 7), |
| DEF_MOD("sdhi2_imclk", R9A08G045_SDHI2_IMCLK, CLK_SD2_DIV4, 0x554, 8), |
| DEF_MOD("sdhi2_imclk2", R9A08G045_SDHI2_IMCLK2, CLK_SD2_DIV4, 0x554, 9), |
| DEF_MOD("sdhi2_clk_hs", R9A08G045_SDHI2_CLK_HS, R9A08G045_CLK_SD2, 0x554, 10), |
| DEF_MOD("sdhi2_aclk", R9A08G045_SDHI2_ACLK, R9A08G045_CLK_P1, 0x554, 11), |
| DEF_COUPLED("eth0_axi", R9A08G045_ETH0_CLK_AXI, R9A08G045_CLK_M0, 0x57c, 0), |
| DEF_COUPLED("eth0_chi", R9A08G045_ETH0_CLK_CHI, R9A08G045_CLK_ZT, 0x57c, 0), |
| DEF_MOD("eth0_refclk", R9A08G045_ETH0_REFCLK, R9A08G045_CLK_HP, 0x57c, 8), |
| DEF_COUPLED("eth1_axi", R9A08G045_ETH1_CLK_AXI, R9A08G045_CLK_M0, 0x57c, 1), |
| DEF_COUPLED("eth1_chi", R9A08G045_ETH1_CLK_CHI, R9A08G045_CLK_ZT, 0x57c, 1), |
| DEF_MOD("eth1_refclk", R9A08G045_ETH1_REFCLK, R9A08G045_CLK_HP, 0x57c, 9), |
| DEF_MOD("scif0_clk_pck", R9A08G045_SCIF0_CLK_PCK, R9A08G045_CLK_P0, 0x584, 0), |
| DEF_MOD("gpio_hclk", R9A08G045_GPIO_HCLK, R9A08G045_OSCCLK, 0x598, 0), |
| }; |
| |
| static const struct rzg2l_reset r9a08g045_resets[] = { |
| DEF_RST(R9A08G045_GIC600_GICRESET_N, 0x814, 0), |
| DEF_RST(R9A08G045_GIC600_DBG_GICRESET_N, 0x814, 1), |
| DEF_RST(R9A08G045_IA55_RESETN, 0x818, 0), |
| DEF_RST(R9A08G045_WDT0_PRESETN, 0x848, 0), |
| DEF_RST(R9A08G045_SDHI0_IXRST, 0x854, 0), |
| DEF_RST(R9A08G045_SDHI1_IXRST, 0x854, 1), |
| DEF_RST(R9A08G045_SDHI2_IXRST, 0x854, 2), |
| DEF_RST(R9A08G045_ETH0_RST_HW_N, 0x87c, 0), |
| DEF_RST(R9A08G045_ETH1_RST_HW_N, 0x87c, 1), |
| DEF_RST(R9A08G045_SCIF0_RST_SYSTEM_N, 0x884, 0), |
| DEF_RST(R9A08G045_GPIO_RSTN, 0x898, 0), |
| DEF_RST(R9A08G045_GPIO_PORT_RESETN, 0x898, 1), |
| DEF_RST(R9A08G045_GPIO_SPARE_RESETN, 0x898, 2), |
| }; |
| |
| static const unsigned int r9a08g045_crit_mod_clks[] __initconst = { |
| MOD_CLK_BASE + R9A08G045_GIC600_GICCLK, |
| MOD_CLK_BASE + R9A08G045_IA55_PCLK, |
| MOD_CLK_BASE + R9A08G045_IA55_CLK, |
| MOD_CLK_BASE + R9A08G045_DMAC_ACLK, |
| }; |
| |
| const struct rzg2l_cpg_info r9a08g045_cpg_info = { |
| /* Core Clocks */ |
| .core_clks = r9a08g045_core_clks, |
| .num_core_clks = ARRAY_SIZE(r9a08g045_core_clks), |
| .last_dt_core_clk = LAST_DT_CORE_CLK, |
| .num_total_core_clks = MOD_CLK_BASE, |
| |
| /* Critical Module Clocks */ |
| .crit_mod_clks = r9a08g045_crit_mod_clks, |
| .num_crit_mod_clks = ARRAY_SIZE(r9a08g045_crit_mod_clks), |
| |
| /* Module Clocks */ |
| .mod_clks = r9a08g045_mod_clks, |
| .num_mod_clks = ARRAY_SIZE(r9a08g045_mod_clks), |
| .num_hw_mod_clks = R9A08G045_VBAT_BCLK + 1, |
| |
| /* Resets */ |
| .resets = r9a08g045_resets, |
| .num_resets = R9A08G045_VBAT_BRESETN + 1, /* Last reset ID + 1 */ |
| |
| .has_clk_mon_regs = true, |
| }; |